M400458 五、新型說明： 【新型所屬之技術領域】 本創作關於-種賊财_技術倾尤指—種可適用 内谷物為私末狀的包裝袋上以防止該粉末狀内容物沒出之 包裝袋的單向排氣閥者。 【先前技術】 -般發酵性食品裝人密封的包裝袋後通常會再釋放一些 氣體，例如咖輕、咖啡粉，，，，，.等，其在魏過程時必須先行 將咖啡豆炒雛再將其裝人密封的包裝細而該咖排豆、咖 啡粉在該密封的包裝袋巾係仍會繼續排放氧氣、二氧化碳及咖 啡香素，而使該包裝袋會因充滿該些氣體而鼓起而影響包裝上 的美觀甚致會使4包裝袋張破。尤其是該咖啡豆或咖粉長期 保存在該些氣體中係會產生咖啡油而影響其之品質，因此目前 通常會在該包裝袋上設置一單向排氣閥供排出該氣體，以改善 上述的問題。 一般習知包裝袋的單向排氣閥，如第一〜四圖所示，其結 構包括一座體1及一彈性片2。其中： 該座體1的一側面可供貼合在一包裝袋3的内面，該座體 1於該側面具有一凹槽1〇，該包裝袋3上對應該凹槽1〇處設 有複數環狀排列之穿孔30。該凹槽10中具有較低之一環片 U。該環片1之中係圍成一槽室12，該環片1與該凹槽10的 3 M400458 槽壁之間並形成一環溝13。該槽室12的底面有複數貫穿到另 -側且呈環形排列的排氣孔14，於該環片〗丨的内壁面上距該 槽至12之底面一距離處係平均間隔凸設有三個凸塊丨5。 該彈性片2係可彈性變曲變形，且設置在該槽室12中並 位在二個凸塊15與該槽室12的底面之間供蓋住該些排氣孔 14，該彈性片2具有兩平邊2〇位在兩相對側。 在該第二、三圖中係可看出，當包裝袋3内之咖啡豆產生 氧氣、二氧化碳及咖啡香素等氣體時，該氣體會造成包裝袋3 内之氣壓增加’而在該氣壓超過—預定值（該預定值可由該彈 性片2的雜變形力來界定）時，該彈性片2便會受到該三個 凸塊15的頂抵而向外彈性彎曲變形，而使該彈性片2的侧邊 與該槽室12之間形成縫隙。如此包裝袋3内之氣體便可經由 排氣孔14而從該彈性片2側邊的縫隙中流出，並自穿孔3〇釋 放至包裝袋3外。而當包裝袋3喊壓未超過該預定值時，該 彈性片2便不會向外料變形，因此該彈性# 2便會蓋住該複 數排氣孔14而制㈣的效果，同時亦不會使外界的氣體渗 入而可達到單向氣閉的功效。 然而，由於該複數排氣孔14的位置係靠近該彈性片2的 周側（其尤其接近兩平邊2〇)，而且該複數排氣孔14具有相 同的孔’其餘亦較大，再加上該三個凸塊15的寬度較小， 且平均間隔设在該環片丨丨的内壁面上。所以，當該彈性片2 向外g曲變形時’該彈性片2的周邊與該環片u的内壁面之 4 M400458 間便會形成較大的縫隙（如第四圖的斜線區域），其中尤其是 該彈性片2的兩平邊20會與該槽室12的底面與該環片11的 内壁面之間會形成較大的開口（如第三圖所示）。因此，當該 包裝袋3的内容物為粉末狀時（如咖啡粉），則其粉末狀的内 容物便很容易隨著氣體由該較靠近排氣孔14之較大縫隙中排 出’而導致粉末狀的内容物外洩之情形。故而，該習知包裝袋 的單向排氣閥係僅能適用於内容物為較大體積（如咖啡豆）之 包裝袋3上。 有鑒於此，本創作人係針對上述習知包裝袋的單向排氣閥 於結構上所產生之諸多缺失及不便，而深入構思，且積極研究 改良試做而開發設計出本創作。 【新型内容】 本創作之主要目的係在於提供一種可適用在内容物為粉 末狀的包裝袋上嘴止該粉末㈣容物灿之包裝袋的單向 排氣閥者 具體而言，本創作所述之包裝袋的單向排氣閥包括-座 體及-彈性片。該座體的—側面可供貼合在—包裝袋的内 面’於該側面具有1猶觀裝紅·環_列的穿孔 相通該凹槽中有較低之一環片該環片中圍成一槽室，該 槽室的底部具-_體。該植體有複數貫穿的網孔 ，該複 數、周孔係巾央位置處者的孔徑較大，越向外圍者的孔徑越 5 M400458 小。該環片的内壁面上距該網狀體一距離處平均間隔凸設有 四個擋塊，每兩相鄰的擋塊之間露出該環片的一小段内壁 ： 面。該彈性片呈圓形且可彈性彎曲變形，該彈性片設置在該 槽室中並位在四個擋塊與該網狀體之間供蓋住該些網孔。 如此，藉由該每兩相鄰的擋塊之間露出該環片的一小段 喊©騎構設計，崎贿數峨射央位置處者的孔徑 較大，越向外圍者的孔徑越小的結構設計，係可使該彈性片 • 彈性彎曲變形後其周邊僅會與該環片的一小段内壁面形成供 氣體排出的小縫隙’而且並使越靠近該小縫隙之網孔的孔徑 越小，進而可達到有效避免粉末狀的内容物洩出，而使其可 適用在内容物為粉末狀的包裝袋上之功效。 【實施方式】 請參閱第五〜七圖所示，係指出本創作所述之包裝袋的 單向排氣閥包括一座體4及一彈性片5。其中： 該座體4的一側面可供貼合在一包裝袋6的内面，該座 體4於該側面具有一凹槽40與該包裝袋6上複數環狀排列的 穿孔60相通。該凹槽40中有較低之一環片41，該環片41 中圍成一槽室42，該環片41與該凹槽40的槽壁之間係形成 一環溝43。該槽室42的底部具一網狀體44，該網狀體44係 由複數交錯的網線一體成型在該座體4上而成。該網狀體44 上有複數貫穿的網孔45 ’該複數網孔45係中央位置處者的孔 6 徑較大，越向外圍者的孔徑越小。該座體4的周邊凸設有一 唇緣46供增加與該包裝袋3的貼合面積。該編的另^側 面具有-容槽47隔著該峨龍與鋪室&撕，該複數 網孔45係貫通該容槽47與該槽室42。該環片41的内壁面上 距該網狀體44 一距離處平均間隔凸設有四個擋塊48,每兩相 鄰的擋塊48之間露出該環片41的一小段内壁面。該四個撞 塊48中係相鄰者呈垂直，相對者呈平行，且每-個擋塊48 朝向該網狀體44的一側面係呈斜面狀。 該彈性片5係呈圓形且可彈性彎曲變形，其材質可為橡膠 或石夕勝等。聰性片5係設置在鋪室42巾且錄在該四個 擋塊48與細狀體44之間供蓋住該些網孔45。 在該第七、八財係可看出，當包裝袋6内之咖啡豆或 加啡私產生氧氣、—氧化碳及咖啡香素等氣體時，該氣體會 造成包裝袋6内之氣壓增加，而在該氣壓超過—預定值（該 預疋值可由該彈性片5的彈性變形力來界定）時，該彈性片5 便會文到該四個擋塊48的頂抵而向外彈性彎曲變形，而使該 彈性片5的周邊與該環片41的内壁面及該四個擋塊48之間 形成縫隙。如此包裝袋6内之氣體便可經由該些網孔45而從 該彈性片5側邊及該四個擋塊48之間的縫隙中流出，並自穿 孔60釋放至包裝袋6外。而當包裝袋6内氣壓未超過該預定 值時’該彈性片5便不會向外彎曲變形，因此該彈性片5便 會蓋住該複數網孔45而達到密封的效果，同時亦不會使外界 M400458 的氣體渗入而可達到單向氣閉的功效。 由於本創作之每兩相鄰的擋塊48之間僅露出該環片41 的一小段内壁面，而且該複數網孔45係中央位置處者的孔徑 較大’越向外圍者的孔徑越小（如第六圖所示）。因此當該彈 性片5向外彈性彎曲變形時其周邊僅會與該環片41的一小段 内壁面形成供氣體排出的小縫隙（如第九圖的斜線區域），而 且越靠近該小縫隙之網孔45的孔徑越小（如第八圖所示;)。 所以係可藉此而能有效避免粉末狀的内容物洩出，進而使其 可適用在内容物為粉末狀（如咖啡粉等）的包裝袋6上。 綜上所述，由於本創作具有上述優點及實用價值，而且 在同類產品巾均未見有類似之產品或發表故已符合新型專利 之申請要件，乃爰依法提出申請。 8 M400458 環溝43 網狀體44 網孔45 唇緣46 容槽47 檔塊48 彈性片5 包裝袋6 穿孔60M400458 V. New description: [New technical field] This creation is about - a kind of thief money _ technology dumping - especially the type of inner grain can be applied to the private bag to prevent the powdery contents from being out of the package One-way exhaust valve for the bag. [Prior Art] - Generally, the fermented foods are usually sealed with some gas, such as coffee, coffee powder,,,,, etc., which must be fried in the Wei process. The sealed package is thin and the coffee beans and coffee powder continue to emit oxygen, carbon dioxide and caffein in the sealed package, so that the package will be filled with the gas. And affecting the beauty of the package will cause the 4 bags to break. In particular, the long-term preservation of the coffee beans or coffee powder in the gas produces coffee oil and affects the quality thereof. Therefore, a one-way exhaust valve is usually disposed on the package to discharge the gas to improve the above. The problem. A one-way venting valve of a conventional packaging bag, as shown in Figures 1 to 4, includes a body 1 and an elastic sheet 2. Wherein: a side surface of the base body 1 can be attached to the inner surface of a packaging bag 3, the seat body 1 has a recess 1 于 on the side surface, and the packaging bag 3 has a plurality of corresponding grooves 1 A perforation 30 of annular arrangement. The groove 10 has a lower one of the ring pieces U. A ring chamber 12 is defined in the ring piece 1, and a ring groove 13 is formed between the ring piece 1 and the 3 M400458 groove wall of the groove 10. The bottom surface of the groove chamber 12 has a plurality of vent holes 14 extending through the other side and arranged in a ring shape. The inner wall surface of the ring plate is spaced apart from the bottom surface of the groove to 12 by an average interval. Bump 丨 5. The elastic piece 2 is elastically deformable and deformed, and is disposed in the groove chamber 12 and located between the two protrusions 15 and the bottom surface of the groove chamber 12 for covering the vent holes 14, the elastic piece 2 There are two flat sides 2 on the opposite sides. It can be seen in the second and third figures that when the coffee beans in the packaging bag 3 generate gas such as oxygen, carbon dioxide and caffein, the gas causes an increase in the gas pressure in the packaging bag 3, and the gas pressure exceeds the pressure. - the predetermined value (which may be defined by the mis-deformation force of the elastic piece 2), the elastic piece 2 is elastically deformed outwardly by the top of the three protrusions 15 and the elastic piece 2 is elastically deformed A gap is formed between the side of the groove and the groove chamber 12. The gas in the package 3 can be discharged from the slit of the side of the elastic sheet 2 via the vent hole 14 and released from the perforation 3 to the outside of the package 3. When the squeaking pressure of the packaging bag 3 does not exceed the predetermined value, the elastic piece 2 will not be deformed by the external material, so the elasticity #2 will cover the plurality of vent holes 14 and the effect of the (4) is not It will infiltrate the outside air and achieve the effect of one-way air closing. However, since the position of the plurality of vent holes 14 is close to the circumferential side of the elastic piece 2 (which is particularly close to the two flat sides 2 〇), and the plurality of vent holes 14 have the same hole 'the rest is larger, plus The width of the three protrusions 15 is small, and the average interval is set on the inner wall surface of the ring piece. Therefore, when the elastic piece 2 is deformed outwardly, a large gap is formed between the periphery of the elastic piece 2 and the inner wall surface of the ring piece u (as in the oblique line area of the fourth figure), wherein In particular, the two flat sides 20 of the elastic piece 2 form a large opening between the bottom surface of the groove chamber 12 and the inner wall surface of the ring piece 11 (as shown in the third figure). Therefore, when the contents of the package 3 are in the form of a powder (e.g., coffee powder), the powdery contents are easily discharged as the gas is discharged from the larger gap closer to the vent hole 14. The situation in which the powdery contents are leaked. Therefore, the one-way venting valve of the conventional packaging bag can only be applied to the packaging bag 3 in which the contents are large in volume (e.g., coffee beans). In view of this, the creator has intensively conceived the many deficiencies and inconveniences caused by the one-way venting valve of the above-mentioned conventional packaging bag, and actively researched and improved the trial and development to design and create the original creation. [New content] The main purpose of the present invention is to provide a one-way exhaust valve that can be applied to a packaging bag having a powdery shape and a mouthful of the powder (4) a container of contents. Specifically, the present invention The one-way exhaust valve of the package includes a seat body and an elastic piece. The side surface of the seat body can be attached to the inner surface of the packaging bag. The side surface of the packaging body has a perforation of the red and the ring_column. The lower one of the ring has a lower ring piece. a tank chamber having a bottom body of -_ body. The implant has a plurality of meshes penetrating therethrough, and the aperture of the plurality of square holes at the center of the plurality of holes is larger, and the aperture to the outer periphery is smaller than 5 M400458. The inner wall surface of the ring piece is uniformly spaced apart from the mesh body by four stops, and a short inner wall of the ring piece is exposed between each two adjacent blocks: a surface. The elastic piece has a circular shape and is elastically bendable, and the elastic piece is disposed in the groove chamber and is located between the four stoppers and the mesh body to cover the mesh holes. In this way, by the small swaying of the ring piece between each two adjacent blocks, the aperture of the hole is larger, and the aperture is smaller toward the outer periphery. The structural design is such that the elastic piece can be elastically bent and deformed, and the periphery thereof only forms a small gap for gas discharge with a small inner wall surface of the ring piece, and the smaller the aperture of the mesh closer to the small gap is, the smaller the aperture is. Further, it is possible to effectively prevent the powdery contents from leaking out, and it is applicable to the effect that the contents are in a powdery package. [Embodiment] Referring to Figures 5 to 7, it is pointed out that the one-way exhaust valve of the package described in the present invention comprises a body 4 and an elastic piece 5. Wherein: a side surface of the base body 4 is affixed to the inner surface of a packaging bag 6, and the seat body 4 has a recess 40 on the side thereof communicating with the plurality of annularly arranged through holes 60 of the packaging bag 6. The groove 40 has a lower one of the ring pieces 41. The ring piece 41 defines a groove chamber 42. An annular groove 43 is formed between the ring piece 41 and the groove wall of the groove 40. The bottom of the chamber 42 has a mesh body 44 formed by integrally forming a plurality of interlaced mesh wires on the base 4. The mesh body 44 has a plurality of meshes 45' which penetrate the central portion of the plurality of meshes 45. The diameter of the holes 6 is larger, and the smaller the diameter toward the outer periphery. A lip 46 is protruded from the periphery of the base 4 for increasing the bonding area with the package 3. The other side of the braid has a pocket 47 that is torn through the pocket and the chamber, and the plurality of meshes 45 extend through the pocket 47 and the chamber 42. The inner wall surface of the ring piece 41 is provided with four stoppers 48 at a distance from the mesh body 44. A short inner wall surface of the ring piece 41 is exposed between each two adjacent blocks 48. Adjacent ones of the four bumps 48 are vertical, opposite in parallel, and each of the stops 48 is beveled toward a side of the mesh body 44. The elastic piece 5 is circular and elastically bendable, and may be made of rubber or Shi Xisheng. The sturdy sheet 5 is disposed in the booth 42 and recorded between the four stoppers 48 and the fine body 44 to cover the meshes 45. It can be seen in the seventh and eighth accounting departments that when the coffee beans or the browning in the packaging bag 6 generate oxygen, carbon monoxide and caffein, the gas will cause an increase in the gas pressure in the packaging bag 6. When the air pressure exceeds a predetermined value (which can be defined by the elastic deformation force of the elastic piece 5), the elastic piece 5 will be elastically bent and deformed to the top of the four blocks 48. A gap is formed between the periphery of the elastic piece 5 and the inner wall surface of the ring piece 41 and the four stoppers 48. The gas in the packaging bag 6 can flow out from the side between the elastic piece 5 and the four stoppers 48 through the mesh holes 45, and is released from the perforation hole 60 to the outside of the packaging bag 6. When the air pressure in the packaging bag 6 does not exceed the predetermined value, the elastic piece 5 will not be bent outwardly, so that the elastic piece 5 will cover the plurality of mesh holes 45 to achieve the sealing effect, and will not The gas of the external M400458 is infiltrated to achieve the one-way air-closing effect. Since only a small inner wall surface of the ring piece 41 is exposed between every two adjacent blocks 48 of the present creation, and the plurality of inner holes of the plurality of mesh holes 45 are at a central position, the aperture is smaller toward the outer periphery. (as shown in the sixth figure). Therefore, when the elastic piece 5 is elastically deformed outwardly, the periphery thereof only forms a small gap (for example, the oblique line region of the ninth figure) for gas discharge with a small inner wall surface of the ring piece 41, and the closer to the small gap The smaller the aperture of the mesh 45 (as shown in the eighth figure;). Therefore, it is possible to effectively prevent the leakage of the powdery contents, and to make it applicable to the package 6 in which the contents are powdery (e.g., coffee powder, etc.). To sum up, as this creation has the above advantages and practical value, and there is no similar product in the same kind of product towel or the publication has met the application requirements of the new patent, it is submitted according to law. 8 M400458 Ring groove 43 Mesh 44 Mesh 45 Lip 46 Mister 47 Block 48 Elastic sheet 5 Bag 6 Perforation 60